When the water filter commences clogging with impurities The sunshine indicator on the PUR Maxion water filter will alter to yellow. This is an indication the water filter has attained its ideal general performance. The point is usually that when your filter senses that it's nearing the 40-gallon mark or https://pur-water-filter-blinking52963.mysticwiki.com/1851902/pur_water_filter_options